Route
Junction number
None
Markerpost
30.3
Name
Colnbrook Lane Configuration Change
Type
Lane configuration change
Terminus
Not a terminus
Other routes
None
Authority
Restricted turns
Full access
Services
No services
M4 Colnbrook Lane Configuration Change
Layout and signage
Lane configuration
- Lane 1 continues ahead.
- Lane 2 continues ahead.
- Lane 3 continues ahead.
- Lane 4 splits to create a new lane.
What's new
A century of motorways
It's 100 years since the opening of the world's first motorway, the Autostrada from Milan to the Lakes.
Schrödinger’s speed limit
In 2022, Manchester City Council say they reduced the speed limit on the Mancunian Way to 30mph. But it’s not clear if they did. It’s not even clear if they can.
Sorry, wrong number
Road numbering is a system with clear rules. What happens when the people responsible for numbering roads don't follow them?
Have you seen...
Warrington New Town
New Towns are fascinating places socially and architecturally - and, of course, in terms of roads. This article explores one example from start to finish.
About this page
Published
Last updated
Published
Last updated
